CN1125828A

CN1125828A - Tolerance-compensating hose clamp

Info

Publication number: CN1125828A
Application number: CN95115574A
Authority: CN
Inventors: 汉斯·厄蒂克
Original assignee: HANS OETIKER AG MASCHINEN-UND APPARATEFABRIK
Current assignee: HANS OETIKER AG MASCHINEN-UND APPARATEFABRIK; Oetiker Schweiz AG
Priority date: 1994-08-19
Filing date: 1995-08-18
Publication date: 1996-07-03
Anticipated expiration: 2015-08-18
Also published as: JPH08170774A; SK101995A3; DE69512974T3; SK283531B6; DE69512974T2; ATE186106T1; KR960008089A; TR199501027A2; CA2155770C; JP3678805B2; HU223742B1; HUT72540A; US5537721A; EP0697554A1; CA2155770A1; CZ291979B6; AU2831495A; TW287221B; CZ212595A3; KR100410814B1

Abstract

The invention provides a clamp structure with a clamping band which can be used, for example, to fixedly secure a hose on a nipple and which includes a tightening arrangement for tightening the clamp structure about the object to be fastened by plastic deformation and a tolerance-compensating arrangement in the form of at least one undulation ; the tolerance-compensating arrangement is thereby separate from the tightening arrangement providing the clamping forces and is so constructed and arranged that the tolerance-compensating arrangement does not affect the holding ability of the tightening arrangement but improves in combination with the tightening arrangement the return spring action of the clamp structure.

Description

The flexible pipe chuck of energy compensate

The present invention relates to a kind of that open, wheel chair access, be provided with what is called " Europe Supreme Being visitor " lug (" Oetiker ", ear) hose clip header structure, this chuck is made by the band that cuts into appropriate length, can compensate the deviation in the builtup member automatically, and this builtup member by hose-like portion and this hose-like portion to form with the object that chuck structure is adorned thereon regularly.

Deviation compensation problem in the flexible pipe chuck by people recognize more existing the time, various solutions were once proposed for this reason.For example authorizing the U. S. Patent of Blair once advised cutting out zigzag fashion on band for 1,705, No. 895 so that give band some elasticity.Other can and be authorized in German patent DE 3018383A number of Rasmussen at No. 4,910,832, U. S. Patent that the shape of giving some flexible clamping bands on the longitudinal direction that clamps band was once being authorized Schaub and disclose.Meter water leaks the shape eyelet so that the elasticity that is provided on the clamping band longitudinal direction then is that I am before at the U. S. Patent 4 that does not have the lug chuck about what is called when surrounding one between the side band portion of two shape indents that contained on one or more clamping tape section, proposed in 987, No. 651.In addition, when surrounding one between the side band portion of two shape indents that on similar section, contained for flexible pipe chuck with one or more what is called " Europe Supreme Being visitor " lug meter water leak the shape eyelet then be 07/446,729 at the application number that I carry out just at the same time, the applying date is 1989.12.06 and is entitled as in the application of " improved flexible pipe chuck " disclosed.The common ground of all this prior art suggestions is that they all are to be with in the clamping on plane to cut, and therefore clamps tape section and keeps flat form.In addition, existing before this in the prior art people proposed the employing ripple and wavy arching up carried out deviation compensation.For example, No. 778,861, B. P. once suggestion adopts one or more flexible arc compensation section, this patent and recognize owing to exist opening below these compensation section and may cause the problem of leaking.In order to prevent to leak, this patent is also advised the end cover that makes the arc compensation section or be placed in following clamping band, thereby or makes such size and camber makes the clamping band that the arc compensation section will be evened up when chuck tightens up keep excellent contact with flexible pipe.F.P. 2,470 was also once advised the wavy following opening or making them be placed in following band portion hides or adopt the way that the special lug boss that inwardly stretches out is set to prevent to leak of arching upward for No. 275 in the wavy portion that arches upward.Accept B. P. 1,064, No. 048 enlightenment, European patent once proposed for No. 0296918 to oppose that sides are provided with that the wavy projection that departs from mutually does one's utmost to reduce because the opening below wavy the arching upward and the leakage that can cause at two of a center joint-cutting.Wavy the arching upward of employing also can be at U. S. Patent 4 on clamping is with, 308, No. 648 and 4,919, see in No. 682, the latter also advises being provided with has elasticity especially when a lengthwise joint-cutting or breach make the M clevis head of formation use on the flexible pipe of being made by hard material such as ebonite or other article.But what the flexible pipe chuck of these prior aries was concerned about all is to make to clamp to be with to possess some elasticity on longitudinal direction, they clearly do not make a distinction the deviation compensation of chuck and clamping ability as typical " Europe Supreme Being visitor " lug and accomplish, they do not relate to yet can guarantee to make chuck turn back to the size that can guarantee predetermined clamping force when requirement that comprehensive spring performance that spring acts on (spring return movement) suitably wears out owing to the variation of the temperature of the entrained medium of flexible pipe and/or pressure and/or owing to hose material with convenient chuck is expanded.The chuck structure of all these prior aries all fails to consider these two different aspects and their interaction, particularly fails to recognize getable advantageous effects when typically " Europe Supreme Being visitor " lug and the wavy tolerance-compensating arrangement that arches upward of employing combine.

The present invention and all above-mentioned these flexible pipe chuck differences are tolerance-compensating arrangement and what is called " Europe Supreme Being visitor " lug combines thereby when the pressure of the entrained medium of flexible pipe and/or temperature changes and always can guarantee to provide suitable compensation and enough clamping abilities (clamping action) when needing adjusting owing to flexible pipe is aging.Should " Europe Supreme Being visitor " lug be to constitute, preferably also be provided with reinforcement by two outwardly directed shanks and a bridge portion that they is coupled together in the centre. facility is so that can provide required clamping action through after the plastic deformation.Such one " Europe Supreme Being visitor " lug can provide the advantageous effects of stack when combining with tolerance-compensating arrangement of the present invention, not only can provide the compensation that is entirely satisfactory, and can provide improved spring action so that keep required clamping force chuck structure to all these variations.Therefore according to form of the present invention is that the wavy tolerance-compensating arrangement that arches upward can be applicable to specific flexible pipe class material so that obtain customer specifications listed deviation compensation and improved spring return movement and can not influence what is called " Europe Supreme Being visitor " lug in the function that keeps aspect the regulation clamping force in requiring, and this clamping force is to be determined by the original plastic deformation of " Europe Supreme Being visitor " lug when tightening up chuck.

Also once finding particularly its hardness and different of material that tolerance-compensating arrangement should be considered flexible pipe aspect this, so that obtain the best deviation compensation and the spring performance of chuck structure, the quantity of spring return movement particularly.To softer hose material such as rubber, be preferably in one or more parallel groove is set in the wavy portion that arches upward, this groove can extend on clamping is with even outside wavy arching upward.For harder hose material, preferably only establish a preferably circular hole in the top center district of wavy projection.In a more excellent embodiment, wavy arching upward is to be to clamp that the less bending radius of tape thickness constitutes and it is about two to three times that clamp tape thickness from clamping the band internal surface to height of vault outer surface by the order of magnitude.The mechanical connection of overlap zone portion comprises the deep-draw supporting hook of one or more cold formings that extruded by carrying material and the sheet hook that extends longitudinally, and this sheet hook also is to be extruded and turned back around the longitudinal axis that clamps band by carrying material to form.In order to prevent below wavy the arching upward of deviation compensation, to leak, opening below this portion that arches upward is hidden by the clamping band inner end with overall with, all is provided with facility so that can not occur any step, skew or discontinuous in guaranteeing on the gripping surface at that time on the inside and outside end that clamps band.

Below in conjunction with the accompanying drawing of just making for the purpose of illustration, to describing according to two embodiments of the present invention, working as after readding to have clearer understanding to above-mentioned these and other some purposes of the present invention, feature and advantage.In the accompanying drawings:

Fig. 1 is according to the side elevation view of chuck under the flat state of going out that is provided with the energy compensate of what is called " Europe Supreme Being visitor " lug of the present invention;

Fig. 2 is the top plan view of the deviation compensation chuck of Fig. 1;

Fig. 3 is the axial elevation view of deviation compensation chuck under the preassembled state of circle of Fig. 1 and 2;

Fig. 4 is the zoomed-in view that " Europe Supreme Being visitor " the lug details that is used for deviation compensation chuck of the present invention is shown;

Fig. 5 is the cross-sectional view that passes through V-V line among Fig. 3;

Fig. 6 is the part detail drawing of zone after amplifying of sheet shaped piece;

Fig. 7 is a part detail drawing that is similar to Fig. 2 of revising embodiment that illustrates according to deviation compensation chuck of the present invention;

Fig. 8 can make pipe joint one flexible pipe one chuck builtup member obtain higher pulling-out force for the section axial sectional view by a pipe joint structure, this pipe joint suits especially and is used according to chuck structure of the present invention; And

Fig. 9 is the top plan view that is similar to Fig. 2 of revising embodiment that reinforcement " the Europe Supreme Being visitor " lug that is used for deviation compensation chuck of the present invention is shown.

Consult accompanying drawing, Fig. 1 and 2 particularly, wherein same label are applicable to all each figure.Label 11 is pointed out clamping band used in the chuck structure of the present invention.Chuck structure is generally pointed out with label 10, the flat state for existing after punching out and extrusion operation shown in the figure.When the circular state of chuck preassembly (Fig. 3), clamping can mechanically link together with any suitable method with overlapped inner end 11a and outer end 11b on 11, in more excellent embodiment, this method comprises the supporting hook 12 that adopts one or more deep-draw cold formings, as me before at U. S. Patent 4,299, disclosed in No. 012, with the hook 13 that longitudinally stretches of a sheet, this hook is after suitable moulding cutting the clamping band outwards to be turned back to form around an axis that extends longitudinally.If the chuck structure preparation is installed vertically, clamp to be with on 11 so and preferably cut out U-shaped as shown in Figure 6, and after chuck structure 10 preassembly are circular, sheet shaped piece 13 is extend in the groove 15, sheet shaped piece 13 preferably to self turning back as shown in Figure 5 so that preassembly is fixed up.But, if chuck structure 10 preparations are radially installed, need only be replaced with me to the sheet shaped piece 13 shown in Fig. 1 and 6 before at U. S. Patent 4,622 so, compound direction shown in No. 720 and supporting hook also can be effective equally.Thereby the

hook

12 and 13 that is provided with on the interior band 11a of portion just can be fitted in oblong shaped orifices 14 and the longitudinal extension groove 15 respectively, this two hole slot all is located on the 11b of tyre portion, and the position is in the zone between the free end of so-called " Europe Supreme Being visitor " lug (generally pointing out with label 16 on figure) and outer end 11b.So-called " Europe Supreme Being visitor " lug is made up of two common outwardly directed

shank

17a and 17b and a bridge portion 18 that they is coupled together in the centre, and this part plays the effect of tightener in chuck structure of the present invention.Bridge portion 18 stretches on the longitudinal direction that clamps band, and it is essentially rectangular, and is provided with

shank

17a and 17b angledly.In bridge portion 18, also be provided with reinforcer 19 so that can make it carry out suitable plastic deformation with usual pincer-like tool, and guarantee the predetermined clamping ability of chuck structure by correct plastic deformation.This " Europe Supreme Being visitor " when lug changes in situation, the temperature of the entrained medium of flexible pipe and/or pressure changes or hose material still can keep the chucking power of being scheduled to when aging for example, and this is that people know.The form that reinforcer 19 can be made into V-shaped groove as me before at U. S. Patent 3,475, shown in No. 793, perhaps preferably make be essentially rectangular shallow grooves shape as me before at U. S. Patent 5,282, shown in No. 295, perhaps make disclosed shape in another application that I carry out at the same time.The application number of this application is 07/629,716, and the applying date is 1990.12.18, and name is called " the reinforcement ledge arrangement that chuck is used ", and its main points were once quoted in this article so that reference.In addition, two or more shallow reinforcement groove 19a and 19b (Fig. 9) also can be set in bridge portion 18 ' replace single shallow grooves 19 as long as the area sum of these grooves can meet U. S. Patent 5,282, No. 295 or the application number 07/629 applied for, the area of the single groove of defined gets final product in 716, and each part groove 19a and 19b preferably construct according to disclosed mode in this last-mentioned U. S. Patent or the patent application at that time.Thereby in case with

hook

12 and 13 be fitted to eyelet 14 and 15 in set up machinery be connected, the chuck that is contained on the flexible pipe just can firmly fix, by " Europe Supreme Being visitor " lug plastic deformation is tightened up for the shape of approximate Ω, this is to know in the industry then.

In order to guarantee on the interior gripping surface of chuck structure 10, not have any step, skew or discontinuous place, on interior band 11a of portion and the 11b of tyre portion, be provided with facility so that eliminate any step that on the overlapping interior band 11a of portion, occurs.This facility comprises a tongue-like extension sheet 21, this tongue piece can be embedded into the tongue piece that forms by extrusion in the central zone portion 22 and accept in the groove, this groove leaves with side band 23a of portion and 23b respectively in its both sides, side band 23a of portion and 23b enter into the diameter of tyre portion respectively at the first step shape 24a of portion and 24b, ditch shape groove 22 then enters into the nominal diameter size that clamps with 11 in second step shape portion 25, this once more fully disclosed in No. 4,299,012, my previous U. S. Patent.Under the extrusion state of the flat blank shown in Fig. 1 and 2, the shape that central zone portion 22 extrudes must can accomplish that under the such preassembled state of Fig. 3, tongue piece is accepted groove and had and similar shapes shown in Figure 3.

In chuck structure of the present invention, " Europe Supreme Being visitor " lug 16 is except can providing predetermined clamping action, also can pass through its plastic deformation, its normal compensate function is provided, for example when the fluctuation of medium occurrence temperature entrained in the flexible pipe and pressure or hose material are aging.In order to help the performance of this function, the form that is provided with in the present invention is wavy arching upward and deviation compensation spare 30 that label 30 is generally pointed out.Deviation compensation needs, because the flexible pipe portion of builtup member and pipe joint or other will be adorned the object of flexible pipe portion, their size all is to make according to certain deviation range of client's regulation.With chuck structure flexible pipe portion is fixed tightly in securely actually that is to say and has only on the fixing parts of pipe joint or other that can both to apply the pressure of regulation during in its minimum dimension and overall dimensions just qualified when chuck structure, and this minimum dimension and overall dimensions are to take place when flexible pipe portion and pipe joint or the portion fixed have its minimum dimension in given deviation range and overall dimensions respectively.Operating specification as chuck structure, the fuel hose on the automobile for example, just require chuck structure can keep the chucking power of a minimum, in other words, to make flexible pipe have the minimum pulling-out force of a regulation exactly, surpassing this power flexible pipe could be pulled off, and test shows that the deviation compensation scope that must enlarge chuck structure just can be applicable to this purposes.In addition, the chucking power that improves day by day of regulation requires flexible pipe to be fixed tightly in like this on the pipe joint in the automotive industry, enables to keep out the pulling-out force that improves day by day and keeps this higher chucking power.Taking according to chuck of the present invention is 15.7-1 with the model of selling on market in the past, the typical Europe Supreme Being visitor chuck of 706R is compared, owing to will consider that the minimum diameter of pipe joint and hose set piece installing is of a size of 14.5mm, and greatest diametrical dimension is 15.5mm, the deviation range of regulation enlarges to some extent, thereby effective gripping range of chuck structure 10mm that also has to increase to.According to the present invention, the length of lug, promptly the Inner Dimension of " Europe Supreme Being visitor " lug (size among Fig. 1 " d ") is increased to 10mm from previous 8.5mm as the first step on longitudinal direction.This variation of " Europe Supreme Being visitor " lug makes additionally reducing that chuck obtains on the circumference when tightening up be about 1.5mm or with regard to the diameter speech, reduce to be about 0.5mm.And, clamping with on also to be provided with form be the wavy tolerance-compensating arrangement that arches upward.In addition, in order to keep the chucking power of a higher regulation, the bandwidth that clamps band expands 10mm to from 7mm, and its thickness is increased to 0.8mm from 0.6mm.Make by stainless steel 1.4301 (AISI304) according to chuck of the present invention for one, the width that clamps band is 10mm, its thickness is 0.8mm, the Inner Dimension of " Europe Supreme Being visitor " lug is 10mm, and to be provided with a form be wavyly to arch upward 30 and one or more tolerance-compensating arrangement of going out the hole, this facility will be illustrated below in more detail, the theoretical gripping range that such chuck can provide is the diameter of 12.3mm to 15.3mm, and can increase the clamping ability of chuck significantly, that is pulling-out force, can increase by 12% approximately.

In addition, the present invention has done modification to the pipe joint with cylindrical external surface 50 of usual usefulness, as shown in Figure 8, forms the circular groove of a plurality of surrounding tube joint circumferential surfacies on its outer surface, can improve pulling-out force significantly like this.Take and not compare with the pipe joint that has circular groove as shown in Figure 8, can be increased to 520N from 240N, can provide twice above chucking power according to the pulling-out force of chuck of the present invention with the resulting result of the pipe joint of circular groove.Similarly improve to also all accomplished after periodically testing according to the builtup member of pipe joint of the present invention, flexible pipe and chuck.

Another importance of the present invention is to find that tolerance-compensating arrangement 30 of the present invention must be used for specific hose material.With U. S. Patent 4,919, No. 682 disclosed situation is opposite, and I once found to be specially adapted to by than the soft material flexible pipe made of rubber for example at temperature correction wavy arch upward slotted eye 32a on 30 and 32b.When the eyelet 32a that will go out and 32b extend longitudinally wavy when arching upward outside 30, owing to outside eyelet 32a and 32b, be left three narrow clamping tapes now, each bar all has than the little size of whole clamping bandwidth, thereby can obtain a spot of additional deviation compensation.In the embodiment of Fig. 1 and 2, be provided with two slotted eye 32a and 32b and be because a single eyelet that is placed on central authorities is set under the condition that tongue-like extension portion 21 is arranged and inappropriate cause, this single eyelet transversely has a predetermined minimum width what clamp band, if tongue-like extension portion 21 pressurizeds or escape into and may cause in this single eyelet leaking at this moment.This minimum width is should be at least general big or bigger with the width of going up any other eyelet with clamping, can generation in the zone of all the other narrower clamping band portions of tolerance-compensating arrangement 30 so that guarantee to clamp the elastic stretching of carrying material.It is wavy when arching upward outside 30 when slotted eye 32a and 32b are extended to, the slotted eye 32a of these two extensions and the both sides of 32b and middle stay have some elastic stretchings than arrowband portion, even but 30 be drawn into by this elastic stretching and still can carry out a spot of deviation compensation substantially for behind the flat state wavy arching upward.

When adopting harder hose material when using plastic flexible pipe, I found once that eyelet 32a and 32b should cancel, and can establish a single eyelet 38 at wavy 30 the top of arching upward and replace it as shown in Figure 7.Test pointed out once that for example drops was all good than other shapes for the effect of circular eyelet 38.

In clamp prepare in the band portion to be placed on wavy arch upward 30 and slotted eye 32a and 32b below the zone in be provided with two than eyelet 32a and 32b slightly the lug boss of long and slightly wide extrusion so that guarantee the normal performance of chuck structure in its all All aspects of.

Now enumerate the example according to a typical indefiniteness of chuck structure of the present invention, size wherein can with the need or require and become.In this example, the total length a that goes out blank in Fig. 1 is 91.5mm, and the thickness b that clamps band is 0.8mm, and this thickness was 0.6mm in the past, and the width c that clamps band is 10mm, and is 7mm in the past.The width of lug or inner length d are 10mm, and in the former chuck, this length is 8mm.The wavy length e that arches upward is 2.5mm.Also having the length .f of each bar slotted eye 32a and 32b all is 8mm.Width as for each bar eyelet 32a and 32b then is selected like this, and the overall width that makes this two eyelets 32a and 32b is greater than the width of clamping with last any other eyelet, for example the width o of aperture 14.Concerning the chuck of present embodiment, it is suitable that the width g that found that each bar eyelet 32a and 32b is about 2mm.Wavy 30 the inside radius R1 of arching upward is 1.25mm, and outer radius R2 is 0.4mm.The total length of tongue-like extension portion is 13mm, and 14 is 55.2mm near the free-ended end faces of the 11b of tyre portion apart from i from the interface of supporting hook 12 to eyelet.From the termination of step-like 24a and 24b to eyelet 14 near the free-ended end faces of the 11b of tyre portion be 30.5mm apart from k, and be 20mm to the eyelet 14 close free-ended end faces of the 11b of tyre portion apart from l near the termination of lug 16 from slotted eye 32a and 32b.Is 11mm near the free-ended end faces of the 11b of tyre portion apart from m to eyelet 14 from the center of lug 16.The length n of aperture 14 is 3.3mm, and the width of aperture 14 is 3.5mm.The length p of the eyelet (groove) 15 of sheet hook 13 usefulness is 3.5mm, and the spacing q between the adjacent face of aperture 14 and groove 15 is 2mm.Spacing between the abutting end of the tip of the interface of supporting hook 12 and sheet shaped piece 13 is 2.3mm, and lug boss 35a that extrudes and the length of 35b are 9mm, and the spacing of the end face of the 11a of band portion is 1mm in leaving, and this end face is a landscape surface, and tongue-like extension portion is just from this face.The overall with S ' of the lug boss that each bar extrudes is about 3mm, and its two ends all have radius to be about the semi-circular ends of 1.5mm, and the distance from the termination of tongue-like extension portion to the backward end of supporting hook 12 is 28mm.The width V of tongue-like extension portion 21 is 2.8mm, and from clamping the band internal surface. to the extrusion lug boss 35a of lug boss outer surface and the height of 35b is 1.3mm.The length x of supporting hook 12 is 2.8mm, and its maximum height y is 2.2mm.The degree of depth of strengthening groove 19 is 2mm, and the length of sheet shaped piece 13 is 3mm, and maximum height B is 3.2mm.Distance from the eyelet 14 close free-ended end faces of the 11b of tyre portion to the termination of tyre portion is 8.5mm.The bridge portion 18 of lug 16 preferably carries out the transition to

shank

17a and 17b with less rounding, and

shank

17a and 17b then carry out the transition to clamp with less rounding and be with 11, and the bending radius of these less roundings can adopt for example about 0.4mm.The height of groove 22 is 3mm.

Fig. 7 illustrates chuck structure among Fig. 1 to 6 when being used for for example correction embodiment during plastics of hard hose material, and wherein slotted eye 32a and 32b are cancelled, the substitute is a circular hole 38 that is located at wavy 30 tops of arching upward.When Circularhole diameter 38 is different from the chuck shown in Fig. 1 and 2 and proves once that this chuck is used in and also can obtain similar gratifying effect on the harder plastic flexible pipe testing under the conditions of similarity with shown in Figure 7 when closed for 4mm and with lug.

To carrying out showing employing chuck structure of the present invention, can how must surpass 55% radial force about the test result of radial force (being+newton) in daN according to chuck structure of the present invention and existing accordingly chuck structure thereof.

Be of a size of 14.5mm and greatest diametrical dimension is flexible pipe and the pipe joint that assembles up in the regulation deviation range of 15.5mm for one at minimum diameter, in order to handle the difference on diameter dimension, chuck must have the gripping range of the expansion of a 10mm, and this is to be obtained by the size d that increases lug 16.When the size d of lug 16 when 8.5mm is increased to 10mm, when tightening up lug, can obtain on the extra circumference that is about 1.5mm. reduce,, have one to be about reducing of 0.5mm perhaps with regard to diameter.For satisfied modern specification requirement, so chuck must be provided with tolerance-compensating arrangement in addition.In according to chuck structure of the present invention, this point is to accomplish by containing the wavy deviation compensation device that arches upward 30.Adopt oblong eyelet 32a and the 32b that goes out, can reach the gripping range that diameter is about 12.3mm to 15.5mm in theory.Such chuck structure available internal diameter when lug is closed is 13.4mm.On the other hand, if need not use tolerance-compensating arrangement, that is not 12.3mm according to the internal diameter that chuck structure of the present invention has when lug is closed, and that is to say, the difference in internal diameters that tolerance-compensating arrangement produces is about 1.1mm.Then not by being influenced according to tolerance-compensating arrangement of the present invention, lug is used to provide before the tangible elastic compensating because the stretching of tolerance-compensating arrangement occurs in " Europe Supreme Being visitor " as for the clamping action of lug or chucking power.In other words, after will using up substantially in the compensation ability of compensating device 30, " Europe Supreme Being visitor " lug just is used to afford redress, owing to exist slotted eye 32a, 32b in 30 wavy arching upward, circular hole 38 or other analogs, therefore should wavyly arch upward 30 can provide less resistance to distortion than the lugs 16 with the plastic deformation reinforcement, i.e. easy deformation more.But according to the present invention " Europe Supreme Being visitor " lug and tolerance-compensating arrangement are combined and to have Overlay, the effect of return spring is increased, this can see from the following test result that goes out with tabular, is wherein showing the increase of the return spring effect of the above-mentioned combination that the increase by spring return movement distance reflects.In all these tests, sample all is to be made by the same clamping carrying material with same width, thickness and other indication characteristics, and be subjected to indicating pulling force (in Kp, Kp is a kip, 1 kip=4482N) so that make of the differential gradually inversion of the tensile elongation of sample by 0.5mm, the stroke (in mm) of return spring when writing down pulling force simultaneously and withdrawing.The lug that adopts in sample typical " Europe Supreme Being visitor " lug for strengthening with a shallow grooves is as top illustrated in typical example.Used drops eyelet is essentially semicircle in the Extreme breadth district in test 6A, 6B and 7A, 7B is then becoming a tip and is stipulating its total length with the hypotenuse gathering on the direction of lug.The width of clamping carrying material and thickness are all in mm.

Test 1A

Carrying material: 9 * 0.6

Clamp band: arch upward the band lug

Section arches upward: circular hole, diameter 3.0mm pulling force Kp extend mm return spring stroke mm12 0.5 0.2523 1.0 0.5228 1.5 0.7730 2.0 0.8731 2.5 0.8033 3.0 0.9533 3.5 1.0334 4.0 0.9234 4.5 1.0834 5.0 1.17

Test 1B

Carrying material: 9 * 0.6

Clamp band: arch upward no lug

Portion arches upward: circular hole, diameter 3.0mm pulling force Kp extend mm return spring stroke mm43 0.5 0.1485 1.0 0.1790 1.5 0.19130 2.0 0.23205 2.5 0.27

Test 2A

Carrying material: 10 * 0.6

Clamp band: arch upward the band lug

Portion arches upward: circular hole, diameter 3.0mm pulling force Kp extend mm return spring stroke mm18 0.5 0.2226 1.0 0.4529 1.5 0.4331 2.0 0.5732 2.5 0.7834 3.0 0.7735 3.5 1.6735 4.0 0.8535 4.5 0.7936 5.0 0.82

Test 2B

Carrying material: 10 * 0.6

Clamp band: arch upward no lug

Portion arches upward: circular hole, diameter 3.0mm pulling force Kp extend mm return spring stroke mm33 0.5 0.2452 1.0 0.2573 1.5 0.26109 2.0 0.25175 2.5 0.25

Test 3A

Carrying material: 9 * 0.6

Clamp band: arch upward the band lug

Section arches upward: circular hole, diameter 3.5mm pulling force Kp extend mm return spring stroke mm15 0.5 0.1922 1.0 0.4728 1.5 0.6331 2.0 0.6733 2.5 0.9334 3.0 0.9435 3.5 0.9035 4.0 1.0236 4.5 1.1336 5.0 0.98

Test 3B

Carrying material: 9 * 0.6

Clamp band: arch upward no lug

Portion arches upward: circular hole, diameter 3.5mm pulling force Kp extend mm return spring stroke mm45 0.5 0.1763 1.0 0.2385 1.5 0.23135 2.0 0.23200 2.5 0.32

Test 4A

Carrying material: 10 * 0.6

Clamp band: arch upward the band lug

Section arches upward: circular hole, diameter 3.5mm pulling force Kp extend mm return spring stroke mm 15 0.5 0.29 24 1.0 0.44 28 1.5 0.69 30 2.0 0.83 33 2.5 0.79 34 3.0 0.88 35 3.5 1.02 35 4.0 1.05 36 4.5 1.05 37 5.0 1.20

Test 4B

Carrying material: 10 * 0.6

Clamp band: arch upward no lug

Portion arches upward: circular hole, diameter 3.5mm pulling force Kp extend mm return spring stroke mm 40 0.5 0.16 52 1.0 0.19 80 1.5 0.14 130 2.0 0.20 185 2.5 0.24

Test 5A

Carrying material: 9 * 0.6

Clamp band: arch upward the band lug

Section arches upward: circular hole, diameter 4.0mm pulling force Kp extend mm return spring stroke mm15 0.5 0.5015 1.0 1.0018 1.5 1.3625 2.0 1.6930 2.5 1.8832 3.0 2.1034 3.5 2.2835 4.0 2.2035 4.5 2.1835 5.0 2.25

Test 5B

Carrying material: 9 * 0.6

Clamp band: arch upward no lug

Portion arches upward: circular hole, diameter 4.0mm pulling force Kp extend mm return spring stroke mm40 0.5 0.3055 1.0 0.3878 1.5 0.39125 2.0 0.33175 2.5 0.42

Test 6A

Carrying material: 9 * 0.6

Clamp band: arch upward the band lug

Section arches upward:the drops hole; Diameter 3.5mm, length 7mm pulling force Kp extend mm return spring stroke mm20 0.5 0.3025 1.0 0.5928 1.5 0.9630 2.0 0.8733 2.5 1.0135 3.0 1.1838 3.5 0.9938 4.0 1.0338 4.5 1.2338 5.0 1.06

Test 6B

Carrying material: 9 * 0.6

Clamp band: arch upward no lug

Portion arches upward: the drops hole, diameter 3.5mm, length 7mm pulling force Kp extend mm return spring stroke mm43 0.5 0.3659 1.0 0.4080 1.5 0.34122 2.0 0.25185 2.5 0.32

Test 7A

Carrying material: 10 * 0.6

Clamp band: arch upward the band lug

Portion arches upward: the drops hole, diameter 3.5mm, length 7mm pulling force Kp extend mm return spring stroke mm22 0.5 0.4430 1.0 0.6435 1.5 0.7238 2.0 0.8139 2.5 0.9940 3.0 1.0340 3.5 1.0040 4.0 1.1040 4.5 1.1640 5.0 1.11

Test 7B

Carrying material: 10 * 0.6

Clamp band: arch upward no lug

Portion arches upward: drops hole, diameter 3.5mm, length

7mm pulling force Kp extends mm return spring stroke mm30 0.5 0.2950 1.0 0.2870 1.5 0.22105 2.0 0.24165 2.5 0.25

Test 7C

Carrying material: 10 * 0.6

Clamp band: arch upward the band lug

Section arches upward: circular hole, diameter 4.0mm pulling force Kp extend mm return spring stroke mm 18 0.5 0.28 25 1.0 0.51 28 1.5 0.80 30 2.0 0.89 32 2.5 0.75 33 3.0 0.98 33 3.5 1.01 33 4.0 0.93 33 4.5 0.96 33 5.0 1.06

Test 8A

Carrying material: 9 * 0.6

Clamp band: arch upward the band lug

Section arches upward:groove; Long 10mm, wide 2mm pulling force Kp extend mm return spring stroke mm15 0.5 0.3525 1.0 0.6025 1.5 0.7530 2.0 0.7730 2.5 1.0030 3.0 1.0832 3.5 1.1032 4.0 1.1132 4.5 1.1932 5.0 1.3133 6.0 1.3133 7.0 1.2935 8.0 1.42

Test 8B

Carrying material: 9 * 0.6

Clamp band: arch upward no lug

Portion arches upward: groove, long 10mm, wide 2mm pulling force Kp extend mm return spring stroke mm35 0.5 0.2352 1.0 0.2775 1.5 0.24110 2.0 0.28175 2.5 0.30

Test 9A

Carrying material: 10 * 0.6

Clamp band: arch upward the band lug

Section arches upward:groove; Long 10mm, wide 2mm pulling force Kp extend mm return spring stroke mm20 0.5 0.4928 1.0 0.6932 1.5 0.8733 2.0 0.9735 2.5 1.0035 3.0 1.0935 3.5 1.1736 4.0 1.1235 4.5 1.2135 5.0 1.3137 6.0 1.3238 7.0 1.4438 8.0 1.45

Test 9B

Carrying material: 10 * 0.6

Clamp band: arch upward no lug

Portion arches upward: groove, long 10mm, wide 2mm pulling force Kp extend mm return spring stroke mm38 0.5 0.2255 1.0 0.3175 1.5 0.30120 2.0 0.24175 2.5 0.29

Though I only illustrate according to two embodiments of the present invention, will be understood that this two example can not limit the present invention, is easy to make based on this various modifications for those skilled in the art.Therefore, the present invention also can be applicable on other clamping arrangements, as long as a tolerance-compensating arrangement of separating can keep connecting with the facility that tightens up that gripping range and clamping action are provided.For example, the size of single lug chuck structure and size thereof can be changed so that provide chuck structure for different hose diameters.In addition, size also can change so that the special requirement of satisfying the client and specification requirement and/or satisfy the requirement of different mechanical connections when overlap zone portion.For example, the pattern of the number of hook and/or hook can change according to the size and the requirement of specific chuck structure.In addition, the present invention also can be applicable to have more than a lug and/or the structure that assembled up by two or more constituent elements.The tightening up that facility also can change and to satisfy the gripping range that regulation requires and the spring action of clamping force of chuck as long as it has one.For width that clamps band and tolerance-compensating arrangement and thickness also is so, as long as they all can be changed the requirement that can satisfy regulation in the mode consistent with the present invention.Not having any step, skew or discontinuous facility on the gripping surface in guaranteeing also can revise, my previous U. S. Patent 4 for example, 315, No. 348, or my previous U. S. Patent 4,237, No. 584, or once disclosed in No. 5,283,931, my the previous U. S. Patent shown in Fig. 6-11.Therefore, the present invention is not limited to the size of these two specific embodiments and illustrated in this article they, but the chuck structure that can be applied to have similar problem and satisfy other modifications of criterion disclosed in this invention.Therefore be not confined to the details of the shown and explanation of this paper when I wish to authorize but will cover all such changes and modifications as long as they are within the scope of the appended claims.

Claims

1. chuck structure, this structure has to clamp the band facility and be located at makes chuck structure can install to facility on the object that will tighten up on the said clamping band facility, this facility comprises chuck structure is tightened up facility and tolerance-compensating arrangement on the object that will tighten up, said tolerance-compensating arrangement comprises the wavy facility that arches upward that is located on the said clamping band facility, and the said wavy facility that arches upward can make tolerance-compensating arrangement be applicable to the other facility of hose material hardness in addition.

2. according to the chuck structure of claim 1, it is characterized by, said other facility comprises at least one eyelet that is located on the said wavy facility that arches upward, and the shape that it had is relevant with the hardness of hose material.

3. according to the chuck structure of claim 2, it is characterized by, a relevant eyelet extends the whole length of crossing a relevant wavy facility that arches upward at least substantially on the longitudinal direction that clamps the band facility.

4. according to the chuck structure of claim 3, it is characterized by, a relevant eyelet is extending outside the termination that runs off a relevant wavy facility that arches upward at least on the longitudinal direction that clamps band.

5. according to the chuck structure of claim 4, it is characterized by, relevant eyelet extends on the longitudinal direction that clamps band and runs off outside two terminations of a relevant wavy facility that arches upward.

6. according to the chuck structure of claim 2, it is characterized by, a relevant eyelet that is located on the wavy facility that arches upward should leave the wavy portion that arches upward of the side that is located at the eyelet both sides in the position that clamps on the band facility.

7. according to the chuck structure of claim 5 or 6, it is characterized by, a relevant eyelet is essentially long-round-shape, preferably has a main portion that is essentially straight line, and two ends connect the end of approximate half-circular at least.

8. according to the chuck structure of claim 2 or 6, it is characterized by, this eyelet has the shape of approximate circle at least and is located at the top of the corresponding wavy facility that arches upward.

9. according to the chuck structure of claim 2 or 6, it is characterized by, a relevant eyelet has an approximate at least drop-shaped shape.

10. according to each chuck structure in the claim 2-9, it is characterized by, have at least two eyelets to be located on the relevant wavy facility that arches upward, this two eyelet is arranged in spaced-apartly and clamps band transversely, form three wavy portions that arch upward, two wavy portion and wavy portions that arch upward of central authorities of arching upward of side are wherein arranged.

11. the chuck structure according to claim 10 is characterized by, each eyelet facility all has and is essentially oblong shape.

12. according to each chuck structure in the claim 1-11, it is characterized by, the said facility that tightens up can provide a spring action so that chuck structure is tightened up on the object that will tighten up, and be exercisablely when it tightens up, can provide and keep to be applied to predetermined clamping force on the said object by said clamping arrangement, said in addition tolerance-compensating arrangement also is exercisable, at least all can not influence said clamping force of tightening up facility substantially in its almost whole deviation in by the scope of repaying, simultaneously but can with tighten up facility and combine the spring return movement that produces an increase.

13. each chuck structure in requiring according to aforesaid right, it is characterized by, saidly tighten up the lug facility that facility is a plastically deformable, this facility generally includes two outwardly directed shanks and one and in the centre they is coupled together along the lengthwise that clamps the band facility to the bridge portion of stretching and be provided with the reinforcement facility.

14. the chuck structure according to claim 13 is characterized by, said reinforcement facility is formed by at least one shallow grooves, this groove strengthen facility be covered with before forming the bridge portion gross area at least about 30% area.

15. the chuck structure according to claim 13 is characterized by, said reinforcement facility is to be formed by two grooves that longitudinally stretch basically and be arranged side by side in bridge portion, the gross area of this two groove be covered with the said bridge portion gross area at least about 30%.

16. according to each chuck structure in the claim 2-15, it is characterized by, said chuck structure is for opening formula, has the band portion that overlaps, and the said facility that chuck structure can be installed comprises the facility of mechanical connection, this facility has at least one small perforations in a band portion therein, and at least should be with the same big in clamping band aperture width transversely at the width that clamps eyelet transversely.

17. chuck structure according to claim 16, it is characterized by, said mechanical connection facility comprises at least one deep-draw cold forming and outwardly directed supporting hook, this supporting hook is to be essentially horizontal joint-cutting by clamping band facility along one to extrude so that an interface is provided, and said at least one aperture is generally rectangular, and its width enough makes supporting hook stretch into to pass and make one of them horizontal expansion limit to engage with the interface of supporting hook.

18. chuck structure according to claim 17, it is characterized by, said mechanical connection facility also comprises a sheet hook, this hook also is outwards to turn back along the longitudinally extending axis that clamps band basically to bend along the extending longitudinally that clamps band and around one basically, and another eyelet is one be with longitudinally extending slit-like opening eye along clamping basically, its width is slightly larger than the thickness that clamps the band facility at least, thereby and said sheet hitcher have such height dimension that its outwards outstanding end can be curved to make the chuck structure can preassembly.

19. according to each chuck structure in the claim 1-18, it is characterized by, also has other facility so that guarantee to have a smooth basically interior gripping surface, this facility is included, the tongue-shaped facility in the tyre portion in band portion and the tongue piece in another band portion are accepted facility, and said tongue piece is accepted facility, and some is formed by a step-like zone in another band portion.

20. according to each chuck structure in the claim 2-19, it is characterized by, clamp the band facility vertically on the length of the relevant eyelet that stretches should be the twice of the gap lengths that forms below the relevant wavy facility that arches upward at least, preferably be at least the three to four-fold of gap lengths.

21. according to each chuck structure in the claim 1-20, it is characterized by, the gap lengths that forms below the relevant wavy facility that arches upward is approximately two to three times of the thickness that clamps the band facility.

22. according to each chuck structure in the claim 1-21, it is characterized by, the height of the relevant wavy facility that arches upward is greater than the about twice that clamps band facility thickness, but less than clamping about four times that are with facility thickness.

23. according to each chuck structure in the claim 1-22, it is characterized by, respectively used radius equals to clamp the thickness of band facility at least during the outside evagination ground rounding of this wavy facility that arches upward, and is preferably about a times to about two times of the thickness that clamps the band facility.

24. according to each chuck structure in the claim 1-23, it is characterized by, said clamping band facility has the lug boss of two extrusion in the zone when the chuck preassembly below eyelet, and the area of each lug boss should equal the area of eyelet at least, this two area and together stretching, extension.